CN104902576A - Method and device for allocating resource in logic cell - Google Patents
Method and device for allocating resource in logic cell Download PDFInfo
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- CN104902576A CN104902576A CN201510263898.6A CN201510263898A CN104902576A CN 104902576 A CN104902576 A CN 104902576A CN 201510263898 A CN201510263898 A CN 201510263898A CN 104902576 A CN104902576 A CN 104902576A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
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Abstract
The invention discloses a method and device for allocating resource in a logic cell, and relates to the technical field of communications. The method and device are invented for solving the problem that the service of user equipment can be influenced since the resource of the user equipment is insufficient in the prior art. The method is characterized by comprising the following steps: acquiring movement speed of the user equipment in the logic cell, if the movement speed of the user equipment is less than a speed threshold value, acquiring a value of a communication quality parameter while the user equipment is communicated with a base station of each physical cell; judging whether the user equipment is target user equipment according to acquired values of all communication quality parameters; when the user equipment is the target user equipment, using a first resource block as an available resource block of the user equipment, wherein the first resource block comprises all reusable resource blocks in the occupied resource blocks and all unoccupied resource blocks. The method and the device disclosed by the invention are applied to the process of resource allocation after the cells are merged.
Description
Technical field
The present invention relates to communication technical field, particularly relate to method and the device of Resourse Distribute in a kind of logic district.
Background technology
Along with the development of network technology, Long Term Evolution (Long Term Evolution, LTE) network is day by day ripe.LTE system introduces OFDM (Orthogonal Frequency Division Multiplexing, and multiple-input and multiple-output (Multi-Input & Multi-Output OFDM), the key technology such as MIMO), significantly increases spectrum efficiency and message transmission rate.But for the user of cell edge, the user taking same carrier resource due to neighbor cell is comparatively large to its interference, and when the user of cell edge thus can be caused to communicate with the external world, service quality is poor, and throughput is lower.
In order to improve Cell Edge User service quality, cell combining technology is arisen at the historic moment.Cell combining technology refers to merges into a logic district by multiple physical area.Compared with only receiving the signal of the Base Transmitter of physical area, place with the subscriber equipment before merging, identical signal can be launched in the multiple base stations being positioned at same logic district simultaneously, thus the user of cell edge can receive the signal of multiple Base Transmitter simultaneously, thus can reach the object improving Cell Edge User signal quality.But after a logic district is merged in multiple physical area, the Resourse Distribute in logic district is using the total resources of the resource of a physical area as whole logic district, the available resources thus in logic district are not enough.Such as: after physical area A and physical area B is merged into same logic district, the available resources of all subscriber equipmenies (such as 50 subscriber equipmenies) originally in the A of physical area are 100 Resource Block (resource block, RB), the available resources of all subscriber equipmenies (such as 50 subscriber equipmenies) in the B of physical area are 100 Resource Block, but the available resources of totally 100 users in the logic district after merging still are 100 Resource Block, and due to number of users increase but Resource Block does not increase, the available resources of subscriber equipment may be caused not enough, and then the service of subscriber equipment may be affected.
Summary of the invention
The invention provides method and the device of Resourse Distribute in a kind of logic district, the service that can solve the not enough subscriber equipment brought of the available resources due to subscriber equipment existed in prior art can affected problem.
For achieving the above object, the present invention adopts following technical scheme:
A method for Resourse Distribute in logic district, described logic district comprises at least two physical areas, and all Resource Block in described logic district comprise at least one recoverable resources block, and described method comprises:
Obtain the translational speed of subscriber equipment in described logic district;
If the translational speed of described subscriber equipment is less than threshold speed, then obtain the value that the communication quality parameter communicated is carried out in described subscriber equipment and the base station of each physical area respectively;
According to the value of all communication quality parameter obtained, judge whether described subscriber equipment is target UE;
When described subscriber equipment is target UE, using the available resource block of first resource block as described subscriber equipment, described first resource block comprises all described recoverable resources block in occupied resource block and all vacant Resource Block.
A device for Resourse Distribute in logic district, described logic district comprises at least two physical areas, and all Resource Block in described logic district comprise at least one recoverable resources block, and described device comprises:
Acquisition module, for obtaining the translational speed of subscriber equipment in described logic district;
Judge module, for judging whether the translational speed of described subscriber equipment is less than threshold speed;
Described acquisition module, also for when the translational speed of described subscriber equipment is less than threshold speed, obtains the value that the communication quality parameter communicated is carried out in described subscriber equipment and the base station of each physical area respectively;
Described judge module, also for the value according to all communication quality parameter obtained, judges whether described subscriber equipment is target UE;
Processing module, for when described subscriber equipment is target UE, using the available resource block of first resource block as described subscriber equipment, described first resource block comprises all described recoverable resources block in occupied resource block and all vacant Resource Block.
The method of Resourse Distribute and device in logic district provided by the invention, part resource block in logic district is defined as recoverable resources block, then the subscriber equipment not only meeting translational speed but also meet QoS requirement is defined as target UE, the available resource block of target UE comprises recoverable resources block in occupied resource block and vacant Resource Block, with prior art, in logic district after merging, the available resources deficiency of subscriber equipment is compared, the present invention can increase the available resources of the certain customers' equipment in logic district, alleviate the problem of available resources deficiency in logic district, and then better service can be provided for subscriber equipment.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The schematic flow sheet of the method for Resourse Distribute in a kind of logic district that Fig. 1 provides for the embodiment of the present invention;
The schematic flow sheet of the method for Resourse Distribute in the another kind of logic district that Fig. 2 provides for the embodiment of the present invention;
The schematic flow sheet of the method for Resourse Distribute in another logic district that Fig. 3 provides for the embodiment of the present invention;
The structural representation of the device of Resourse Distribute in a kind of logic district that Fig. 4 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the present embodiment, be clearly and completely described the technical scheme in the present embodiment, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiments provide the method for Resourse Distribute in a kind of logic district, be mainly used in logic district as in the process of user equipment allocation resource.Wherein, logic district refers to the community in logic adopting cell combining technology will to obtain after multiple different physical areas merging.In addition, the total resources block of the logic district after merging in prior art is only equivalent to the total resources of a physical area, and the Resourse Distribute principle of logically community, same Resource Block only can distribute to same subscriber equipment, and thus all Resource Block are not reusable.Compared with prior art, in the present embodiment, a part of Resource Block in the total resources block of described logic district is set to recoverable resources block, such as: always have 100 RB in logic district, using the RB of 40 wherein as recoverable resources block.The reusable of indication means, certain Resource Block can distribute to multiple different subscriber equipment.Generally speaking, according to the frequency point allocation situation of Resource Block in the position distribution of subscriber equipment in logic district and logic district, the allocation proportion of recoverable resources block can be determined and which Resource Block is set to recoverable resources block.Such as: all Resource Block corresponding for fringe region in total resources block are set to recoverable resources block.In practical application, the ratio that recoverable resources block accounts for total Resource Block can adjust according to the user's ratio being arranged in zones of different in logic district.Such as: the subscriber equipment being positioned at the fringe region of logic district is more, and the subscriber equipment being positioned at the central area of logic district is less, then suitably can increase the ratio of recoverable resources block.Why a part of Resource Block being defined as recoverable resources block in the present invention, is to provide better service to a part of user in logic district, having more available resource block to embody by enabling this part user.
Based on this, as shown in Figure 1, embodiments provide the method for Resourse Distribute in a kind of logic district, the method comprises:
101: obtain the translational speed of subscriber equipment in described logic district.
In a kind of implementation of this step, by obtaining the position of subscriber equipment in the first moment, obtain in the second moment the displacement that the position of subscriber equipment obtains subscriber equipment, then obtain the translational speed of subscriber equipment according to displacement and time corresponding to this section of displacement.
102: if the translational speed of described subscriber equipment is less than threshold speed, then obtain the value that the communication quality parameter communicated is carried out in described subscriber equipment and the base station of each physical area respectively.
Wherein, the value of this threshold speed can be 1m/s to 3m/s.In practical application, this threshold speed can adjust according to actual conditions.When the translational speed of subscriber equipment is less than threshold speed, can think that subscriber equipment is in static state, also namely may be in current location for a long time, the possibility leaving current location is fast less, thus may need the resource of this logic district of Long-Time Service.If the translational speed of subscriber equipment is greater than threshold speed, then show that subscriber equipment is the equipment of high-speed mobile, have very large probability to move between different districts, be not thus worthwhile for it to distribute recoverable resources block.
But be not that all subscriber equipmenies meeting this condition can use described recoverable resources block, because meet step 101 and 102 the position residing for subscriber equipment of translational speed may be the crossover region of multiple base station, also may for being mainly positioned at the overlay area of certain base station, and be subject to the interference of other base stations less.If the subscriber equipment being in the overlapping coverage area of multiple base station employs recoverable resources block, while then the severe jamming of other base stations is carried out being subject to when communicating in this subscriber equipment and one of them base station, also may use recoverable resources with other equipment simultaneously, then for the problem creating again resource contention this subscriber equipment, can greatly reduce for communication quality these users.Thus, also needing the position judged residing for subscriber equipment, in fact by judging the communication quality of the base station of subscriber equipment and each physical area, determining the position residing for subscriber equipment.
To sum up, after step 101 and 102, the value of communication quality parameter when also needing the base station communication obtaining this subscriber equipment and each physical area is defined as target UE with the subscriber equipment value of translational speed and communication quality parameter all satisfied condition.
Wherein, the communication quality parameter of indication is for representing communication quality when subscriber equipment communicates with base station.Such as: the power of the reference signal that this communication quality parameter can send for base station receives user equipment, can also for the signal interference ratio etc. when base station communicates with subscriber equipment.
103: according to the value of all communication quality parameter obtained, judge whether described subscriber equipment is target UE.
The target UE of indication refers to the coverage being both in this logic district for a long time, mainly be in again the coverage of one of them base station in this logic district, better with the communication quality of this base station, and be subject to the subscriber equipment that the interference effect of other base stations in this logic district is less.
104: when described subscriber equipment is target UE, using the available resource block of first resource block as described subscriber equipment, described first resource block comprises all described recoverable resources block in occupied resource block and all vacant Resource Block.
The available resource block of target UE comprises recoverable resources block, that is except when front not by the Resource Block used, if some Resource Block is employed but belongs to recoverable resources block, then still can be used as the recoverable resources block of target UE.Such as: in logic district, have 100 RB, wherein 40 RB belong to recoverable resources block, current occupied 80 RB, if occupied 80 RB comprise 30 reusable RB, then target UE current available resource block also namely first resource block comprise remaining 20 RB and occupied 30 reusable RB, i.e. 50 RB altogether.And adopting the scheme of prior art, target UE current available resource block is only 20 RB.
It should be noted that, in actual applications, the base station available resource block corresponding according to subscriber equipment carries out scheduling of resource, and the present invention does not relate to the detailed process of scheduling of resource.
The method of Resourse Distribute in the logic district that the embodiment of the present invention provides, part resource block in logic district is defined as recoverable resources block, then the coverage that not only may be in this logic district for a long time will be met but also the subscriber equipment of the coverage being mainly in one of them base station is defined as target UE, using the available resource block of recoverable resources block as target UE, with prior art, in logic district after merging, the available resources deficiency of subscriber equipment is compared, the present invention can increase the available resources of the certain customers' equipment in logic district, alleviate the problem of available resources deficiency in logic district, and then better service can be provided for subscriber equipment.
In addition, the present invention due to using a part of Resource Block as recoverable resources block, thus the present invention can make full use of the Resource Block in logic district, optimizes allocation of resources, and improves the utilance of the Resource Block in logic district.
In order to clearly explain " obtaining the value of the communication quality parameter that described subscriber equipment communicates with the base station of each physical area " in step 102, in a kind of implementation of this step, the communication quality parameter of indication is the performance number of the reference signal that base station receives user equipment sends.
In the process of subscriber equipment and base station communication, subscriber equipment all can send reference signal with constant power to the base station of each physical area in logic district at regular intervals, because the distance of subscriber equipment and base station is not equal, the reference signal of launching can produce certain loss in transmitting procedure, thus the base station of different physical area receive the power of this reference signal may be different, the power of the reference signal that certain base station receives is larger, shows that the communication quality carried out communicating in subscriber equipment and this base station is better.
In order to carry out clearer explanation to step 103, as shown in Figure 2, step 103 " according to the value of all communication quality parameter obtained, judges whether described subscriber equipment is target UE " and can specifically be refined as:
201: the difference determining maximum and other values in the value of all communication quality parameter obtained.
In this step, by the maximum that will obtain after the sequence of the value of all communication quality parameter obtained wherein.
202: if all differences are all greater than difference threshold, then described subscriber equipment is defined as target UE.
Wherein, this difference threshold can be 20dB.
If the value of communication quality parameter when subscriber equipment and certain base station communication is all far longer than the value with the communication quality parameter of other base station communications, then show that subscriber equipment is mainly in the covering of this base station, the interference by other base stations is less.This subscriber equipment can be defined as target UE.
Such as: when comprising this 5 base stations of A, B, C, D and E in a logic district altogether, subscriber equipment sends reference signal with the transmitting power of 23dBm to these 5 base stations simultaneously, the power that these 5 base stations of A, B, C, D and E receive this reference signal is respectively-80dBm ,-100dBm ,-102dBm ,-105dBm ,-110dBm, then the received power of base station A is maximum, and the difference of the received power of base station A and other base stations is all greater than difference threshold 20dB, then show that this subscriber equipment is mainly positioned at the physical coverage area of base station A.
And for example: when comprising this 5 base stations of A, B, C, D and E in a logic district altogether, subscriber equipment sends reference signal with the transmitting power of 23dBm respectively to these 5 base stations, the power that these 5 base stations of A, B, C, D and E receive this reference signal is respectively-91dBm ,-90dBm ,-91dBm ,-95dBm ,-100dBm, then the received power of base station B is maximum, and the difference of the received power of base station B and the received power of other base stations is all less than difference threshold 20dB, then show that this subscriber equipment is positioned at the overlapping coverage area of base station A, B, C, D and E.
It should be noted that, the unit dBm of above-mentioned transmitting power and received power is the method for a kind of conventional expression power in the communications field, can convert with watt (w); When representing power by the mode of dBm, the unit of the difference of two different capacities is dB, and this is determined by the implication of dBm, can with reference to pertinent literature.
As supplementing said method, when subscriber equipment is not target UE, then for the Resource Block of user equipment allocation is current other Resource Block unappropriated.Thus as shown in Figure 3, after step 103 " value of all communication quality parameter that described basis has obtained judges whether described subscriber equipment is target UE ", described method also comprises:
301: when described subscriber equipment is non-targeted subscriber equipment, using the available resource block of Secondary resource block as described subscriber equipment, described Secondary resource block comprises all vacant Resource Block.
Secondary resource block refers to the unappropriated Resource Block of current time.Such as: have 100 RB in logic district, wherein 40 RB belong to recoverable resources block, and current occupied 80 RB, then non-targeted subscriber equipment current available resource block only comprises remaining 20 RB.
It should be noted that, different according to the antenna that base station uses, same base station both can cover a physical area, also may be coated with multiple physical area (being referred to as sector in some document).Such as: when base station uses omnidirectional antenna, base station range is called a community, when base station uses the directional antenna of different angles, the coverage of base station can be multiple different physical areas according to the number of antenna and angular divisions.Wherein, in the present embodiment, the physical area of indication both can be the physical area covered under same base station, also can for the community under different base station covering.Such as: be coated with 5 physical areas under the A of base station, then when carrying out the merging of physical area, may be that the whole physics cell combining under being covered by base station A are 1 logic district.And for example: under the A of base station, be coated with 5 physical areas, under the B of base station, be coated with 5 communities, then when carrying out the merging of physical area, may for 1 logic district be merged in 3 physical areas under 3 physical areas under base station A covering and base station B covering.
Mainly be described for the corresponding different base station in different physical area in the embodiment of the present invention, when the base station of the different physical areas in logic district is same, base station is provided with multiple antenna for receiving the signal of subscriber equipment transmission or sending signal to subscriber equipment, thus same base station can be communicated by different antennas from subscriber equipment simultaneously, each antenna is to there being a physical area, and communication quality difference when being communicated by different antennae.Such as: base station is provided with directional antenna A, B and C, its main overlay area is physical area A, B and C, then no matter which physical area subscriber equipment is positioned at, antenna on base station all can receive the signal that subscriber equipment is launched, the signal only received is strong and weak different, when subscriber equipment is only positioned at the overlay area of physical area A, communication quality when communicating with antenna A is best, when subscriber equipment is positioned at the overlapping coverage area of physical area A and physical area B, the communication quality of subscriber equipment and antenna A and B is suitable.Thus the embodiment of the present invention still can judge the region at the concrete place of subscriber equipment, and the description reasoning that thus specific implementation of corresponding same base station, multiple physical area can provide according to the present embodiment obtains.
As the specific implementation of said method, the embodiment of the present invention additionally provides the device of Resourse Distribute in a kind of logic district, described logic district comprises at least two physical areas, all Resource Block in described logic district comprise at least one recoverable resources block, as shown in Figure 4, described device comprises:
Acquisition module 401, for obtaining the translational speed of subscriber equipment in described logic district.
Judge module 402, for judging whether the translational speed of described subscriber equipment is less than threshold speed.
Described acquisition module 401, also for when the translational speed of described subscriber equipment is less than threshold speed, obtains the value that the communication quality parameter communicated is carried out in described subscriber equipment and the base station of each physical area respectively.
Described judge module 402, also for the value according to all communication quality parameter obtained, judges whether described subscriber equipment is target UE.
Processing module 403, for when described subscriber equipment is target UE, using the available resource block of first resource block as described subscriber equipment, described first resource block comprises all described recoverable resources block in occupied resource block and all vacant Resource Block.
Further, described judge module 402, specifically for determine all communication quality parameter obtained value in the difference of maximum and other values; When all differences are all greater than difference threshold, described subscriber equipment is defined as target UE.
Further, described processing module 403, also for when described subscriber equipment is non-targeted subscriber equipment, using the available resource block of Secondary resource block as described subscriber equipment, described Secondary resource block comprises all vacant Resource Block.
Further, the described communication quality parameter that described acquisition module 401 obtains is the received power that the base station of each physical area receives the reference signal that described subscriber equipment sends.
The device of Resourse Distribute in logic district provided by the invention, part resource block in logic district is defined as recoverable resources block, then the subscriber equipment just not only having met translational speed but also met QoS requirement is defined as target UE, the available resource block of target UE comprises recoverable resources block in occupied resource block and vacant Resource Block, with prior art, in logic district after merging, the available resources deficiency of subscriber equipment is compared, the present invention can increase the available resources of the certain customers' equipment in logic district, alleviate the problem of available resources deficiency in logic district, and then better service can be provided for subscriber equipment.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add required common hardware by software and realize, and can certainly pass through hardware, but in a lot of situation, the former is better execution mode.Based on such understanding, technical scheme of the present invention can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product is stored in the storage medium that can read, as the floppy disk of computer, hard disk or CD etc., comprise some instructions and perform method described in each embodiment of the present invention in order to make a computer equipment (can be personal computer, server, or the network equipment etc.).
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.
Claims (8)
1. the method for Resourse Distribute in logic district, described logic district comprises at least two physical areas, it is characterized in that, all Resource Block in described logic district comprise at least one recoverable resources block, and described method comprises:
Obtain the translational speed of subscriber equipment in described logic district;
If the translational speed of described subscriber equipment is less than threshold speed, then obtain the value that the communication quality parameter communicated is carried out in described subscriber equipment and the base station of each physical area respectively;
According to the value of all communication quality parameter obtained, judge whether described subscriber equipment is target UE;
When described subscriber equipment is target UE, using the available resource block of first resource block as described subscriber equipment, described first resource block comprises all described recoverable resources block in occupied resource block and all vacant Resource Block.
2. the method for Resourse Distribute in a kind of logic district according to claim 1, is characterized in that the value of all communication quality parameter that described basis has obtained judges whether described subscriber equipment is target UE, specifically comprises:
Determine the difference of maximum and other values in the value of all communication quality parameter obtained;
If all differences are all greater than difference threshold, then described subscriber equipment is defined as target UE.
3. the method for Resourse Distribute in a kind of logic district according to claim 1, it is characterized in that, the value of all communication quality parameter that described basis has obtained, after judging whether described subscriber equipment is target UE, described method also comprises:
When described subscriber equipment is non-targeted subscriber equipment, using the available resource block of Secondary resource block as described subscriber equipment, described Secondary resource block comprises all vacant Resource Block.
4. in a kind of logic district according to any one of claims 1 to 3, the method for Resourse Distribute, is characterized in that, described communication quality parameter is the received power that the base station of each physical area receives the reference signal that described subscriber equipment sends.
5. the device of Resourse Distribute in logic district, described logic district comprises at least two physical areas, it is characterized in that, all Resource Block in described logic district comprise at least one recoverable resources block, and described device comprises:
Acquisition module, for obtaining the translational speed of subscriber equipment in described logic district;
Judge module, for judging whether the translational speed of described subscriber equipment is less than threshold speed;
Described acquisition module, also for when the translational speed of described subscriber equipment is less than threshold speed, obtains the value that the communication quality parameter communicated is carried out in described subscriber equipment and the base station of each physical area respectively;
Described judge module, also for the value according to all communication quality parameter obtained, judges whether described subscriber equipment is target UE;
Processing module, for when described subscriber equipment is target UE, using the available resource block of first resource block as described subscriber equipment, described first resource block comprises all described recoverable resources block in occupied resource block and all vacant Resource Block.
6. the device of Resourse Distribute in a kind of logic district according to claim 5, is characterized in that, described judge module, specifically for determine all communication quality parameter obtained value in the difference of maximum and other values; When all differences are all greater than difference threshold, described subscriber equipment is defined as target UE.
7. the device of Resourse Distribute in a kind of logic district according to claim 5, it is characterized in that, described processing module, also for when described subscriber equipment is non-targeted subscriber equipment, using the available resource block of Secondary resource block as described subscriber equipment, described Secondary resource block comprises all vacant Resource Block.
8. in a kind of logic district according to any one of claim 5 to 7, the device of Resourse Distribute, is characterized in that,
The described communication quality parameter that described acquisition module obtains is the received power that the base station of each physical area receives the reference signal that described subscriber equipment sends.
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